specmat.h File Reference

Definitions of special vectors and matrices. More...

#include <itpp/base/vec.h>
#include <itpp/base/mat.h>

Go to the source code of this file.

Functions
ivec	itpp::find (const bvec &invector)
	Return a integer vector with indicies where bvec == 1.
vec	itpp::ones (int size)
	A float vector of ones.
bvec	itpp::ones_b (int size)
	A Binary vector of ones.
ivec	itpp::ones_i (int size)
	A Int vector of ones.
cvec	itpp::ones_c (int size)
	A float Complex vector of ones.
mat	itpp::ones (int rows, int cols)
	A float (rows,cols)-matrix of ones.
bmat	itpp::ones_b (int rows, int cols)
	A Binary (rows,cols)-matrix of ones.
imat	itpp::ones_i (int rows, int cols)
	A Int (rows,cols)-matrix of ones.
cmat	itpp::ones_c (int rows, int cols)
	A Double Complex (rows,cols)-matrix of ones.
vec	itpp::zeros (int size)
	A Double vector of zeros.
bvec	itpp::zeros_b (int size)
	A Binary vector of zeros.
ivec	itpp::zeros_i (int size)
	A Int vector of zeros.
cvec	itpp::zeros_c (int size)
	A Double Complex vector of zeros.
mat	itpp::zeros (int rows, int cols)
	A Double (rows,cols)-matrix of zeros.
bmat	itpp::zeros_b (int rows, int cols)
	A Binary (rows,cols)-matrix of zeros.
imat	itpp::zeros_i (int rows, int cols)
	A Int (rows,cols)-matrix of zeros.
cmat	itpp::zeros_c (int rows, int cols)
	A Double Complex (rows,cols)-matrix of zeros.
mat	itpp::eye (int size)
	A Double (size,size) unit matrix.
bmat	itpp::eye_b (int size)
	A Binary (size,size) unit matrix.
imat	itpp::eye_i (int size)
	A Int (size,size) unit matrix.
cmat	itpp::eye_c (int size)
	A Double Complex (size,size) unit matrix.
template<class T >
void	itpp::eye (int size, Mat< T > &m)
	A non-copying version of the eye function.
vec	itpp::impulse (int size)
	Impulse vector.
vec	itpp::linspace (double from, double to, int length=100)
	Linspace (works in the same way as the matlab version).
vec	itpp::zigzag_space (double t0, double t1, int K=5)
	Zig-zag space function (variation on linspace).
imat	itpp::hadamard (int size)
	Hadamard matrix.
imat	itpp::jacobsthal (int p)
	Jacobsthal matrix.
imat	itpp::conference (int n)
	Conference matrix.
template<typename Num_T >
const Mat< Num_T >	itpp::toeplitz (const Vec< Num_T > &c, const Vec< Num_T > &r)
	Generate Toeplitz matrix from two vectors c and r.
template<typename Num_T >
const Mat< Num_T >	itpp::toeplitz (const Vec< Num_T > &c)
	Generate symmetric Toeplitz matrix from vector c.
template<>
const cmat	itpp::toeplitz (const cvec &c)
	Generate symmetric Toeplitz matrix from vector c (complex valued).
mat	itpp::rotation_matrix (int dim, int plane1, int plane2, double angle)
	Create a rotation matrix that rotates the given plane angle radians. Note that the order of the planes are important!
void	itpp::house (const vec &x, vec &v, double &beta)
	Calcualte the Householder vector.
void	itpp::givens (double a, double b, double &c, double &s)
	Calculate the Givens rotation values.
void	itpp::givens (double a, double b, mat &m)
	Calculate the Givens rotation matrix.
mat	itpp::givens (double a, double b)
	Calculate the Givens rotation matrix.
void	itpp::givens_t (double a, double b, mat &m)
	Calculate the transposed Givens rotation matrix.
mat	itpp::givens_t (double a, double b)
	Calculate the transposed Givens rotation matrix.

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Detailed Description

Definitions of special vectors and matrices.

Author:

Tony Ottosson, Tobias Ringstrom, Pal Frenger, Adam Piatyszek and Erik G. Larsson

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Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)

This file is part of IT++ - a C++ library of mathematical, signal processing, speech processing, and communications classes and functions.

IT++ is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

IT++ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with IT++. If not, see <http://www.gnu.org/licenses/>.

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